Ruberized abrasives for light deburring, smoothing and polishing. Made from a special formula, combining pure silicon carbide granules with a special oil-resistant rubber bond. They delivery cushion-action performance in a variety of applications on a wide range of materials such as metal, plastic, glass and porcelain. Cratex abrasives can be shaped with convention wheel dressers and do not harden or soften during use or storage. Contains a popular selection of wheels and points, in 5/8", 7/8" and 1" diameters, in various grit textures, plus one point mandrel and one wheel mandrel. Packed in a handy box.